Automatic time out of user login

I have asked by our security team to implement an automatic time out for user logins after a specified time interval. I have never heard of this feature in Unix before.

Does anyone know of a way to accomplish this for HP-UX 11i?

use timeout & tmpout variable.
Doesn't work for csh

I couldn't find any information on the two variables you suggested but you pointed me in the right direction and I found the variable tmout does the trick.

Thank you.